Improved vise



@nitric gisten strnt titre;

SAMUEL s. BARNABY; or Macon, GEORGIA.

Letters Patent-No. 73,944, dated .February 4, 18i38; antedaetl November 23, 1867.

IMPROVED VISE.

TO ALL IT MAY CONCERN:

Be it known that I, SAMUEL S. BARNABY, of Macon', in the county of Bibb, and State of Georgia, haveinvented a new and improved Vise; and I do hereby declare thatthe following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to theY accompanying drawings forming part of this specification.

The object sought to be obtained by the present invention is to produce a vise, which will beef suehaconstruction as to obviate the great inconvenience and loss of time now unavoidable with the use of all visos herctofore invoented and patented. In the accompanying plate of drawings, my improved vise is illustrated- Figure l being a plan or top of a vise made according to the present invention.`

Figure 2, a central longitudinal vertical section, taken in the plane ofthe line x x, fig. 1.

Figure 3, an elevation ofthe rear or inner end ofthe vise, and

Figure 4 a side elevation ofthe rear or inner jaw or portion of the vise.

Similar letters of reference indicate ,like parts. i

A and B respectively represent the two jaws of the viso, one, A, of which jaws is stationary or xed in pdsition by being secured throughathumb-nut, C, upon the screw-shaft D, to the bench or table on which the vise is to'be hung or placed `for use, The other jaw, B, by its square-shaped shank or bar E passing` through a ccrresponding-shaped hole, F, formed in the lowerv portion of the jaw A, is arranged so as ,to be moved away from or toward the fixed jaw either more or less, according to the size of the article which it is desired to hold in and between the two jaws of the vise while being worked or operated upon, the construction and arrangement of the various parts of the vise, whereby its jaw B can be moved, being as follows: The shank'or bar E of the jaw B, from one end to the other, through the said jaw, is groo'ved in the direction of its length, and upon its upper side, leaving side iianges or lips, G, each of which', from the outer end of the shank toward thejaw B, and for a portion of the 'length of the said shank, is provided with a series of similar ratchet-teeth, @equal in size and shape, and at corresponding points, and equal distances apart. H, a bar ornrodfplaced within the groove I of the jaw-shank E, along which it extends from one end tothe other ofthe same, projecting from the front side of the movable jaw B, where it is provided with a knobor handle, J, forA convenience in sliding or moving itwithin the groove ofthe said jaw-shank. The under or lower edgo'of the bar II is notched or cut out in an angular shape at two points, K, of its l'ength, by which notched or cutoutY portions the-said bar H rests upon cross-pins L, xcd in the shank-groove I, one pin to each notch, by means of which the bar, as it is drawn through the said Agrooved 'jaw-shank E, either in on'e or the other direction, (that is, either in or out,) is made to rise upward, or lift at the same time 'that it is moved forward or backward within the shank, as is obvious without any further explanatiomthe object ofrwhpichwili be'hereinafter stated. M is a pawl, which is made of a rectangular shape, and in the form of a frame, suitable Vfory tting. around and about the jaw-shank E, over which it is placed, atfthe inner or rear end, N, of the stationary jawaA, this pawl beinge provided with teeth, b, corresponding in shape and size to those ofthe jawshank, so as to it and mesh int/o the same, and boing arranged by a slot formed in each of its side pieces or bars, O, upon fixed-headed pins or/studs, c, of thejaw A, or of some vpart connected therewith, so as to move up and down in a vertical plane, with-a suiicient length of movement or,

play to` allow its teeth to be disengaged from the jaw-shank E. O2, spiralsprings, suitably connected withv the pawl M to hold it engaged with the shank-teeth ct,- a-nd to bring it into connection with the same, when the force by which it is raised or disconnected therefrom has been remdved. i

From the above description, it is plain tobe seen that if the bar or rod H, by its knob J, be drawn outward suiciently to raise the pawl M from the teeth of thejaw-shank E, by then continuing' to draw` it in the same direction, the jaw B and its shank will be carried along with it away from the stationary jaw A, whereby the jaws ofthe vise'are opened from each other, either more or less, as the case-may be, when, by pushing back the bar H suiiiciently to release it from the pawl M, the movable jaw will be there secured by the interlocking of the pawl with its ratchetshank, through the action ofthe springs connected with the said pawl, as has been hereinbefore described. To close the jaws of the vise, the bar I-I is pushed inward sulcient to raise the pawl from th ratchet-shank, after whichby continuing tosc move it, the movable iaw can be carried along in common with it toward the xed or stationary jaw, and thus either more or less closed, according as may be desired, the jaw B always being held at whatever position it may be brought or adjusted by the meshing of the pawl M with the teeth of the ratchet-shank of such jaw, as is apparent without any further explanation.

In the opening or closing of thejaws ofthe vise, as above explained, it is plain to be seen that the adjustment of thejaws is necessarily limited to the -width or space between cach tooth of the series of teeth formed along the shank of the movable jew, which, in many instances, would operate seriously against the general utility and practicability of the vise, as its use would be limited to only certain sizes of articles; but to obviate this, I have arranged, in connection with the vise, an eccentric lever, in such a manner that, after the movable jaw has been once set, by means of the pawl M, it can be still further adjusted, as will be now described.

S, a rectangular or square-shaped sleeve or collar, placedA upon the jaw shank-bar E, at the rear or inner end of the fixed jaw, between such end of the fixed jaw and the pawl M, the said pawl M being secured to it in the manner ashas been hereinbefore particularly described. This sleeve, S, is arranged'to slide upon the shank bar, and at its inner end, contiguousiwith the jaw, it'is connected therewith through bent springs T, that at one eud are secured to the stationary-jaw A, and at their other or loose ends bear against the'lugs U of the sleeve. To the upper side of the sleeve S is hung an eccentric, V, provided with a handle, W, for convenience in turning it, Iwhich eccentric, by its periphery or edge, bears against the stationary jaw A of the vise, through a friction roller, X, hung at a suitable point of it therefor. Y y

From the above, it is plainly apparent that if the eccentric V, by its handle, be turned either toward the right or left, it will, by acting lagainst the stationary jaw A of the vise, move or slide the sleeve S away therefrom, or allow it to be drawn toward it, as the case may be, by the action of the bent springs T; and, as such,

Asleeve has the pawl M hung or secured to it, it consequently will carry along with it the jaw-shank or bar E with which the said pa-wl is engaged, thereby opening or closing the jaws of the vise, either more or less, and in direct proportion to the movement of the sleeve, as above explained, and in a manner entirely independent ot the adjustment of thejaws by the pawl M and the ratchet-teeth of the jaw-shank E.

Among the many advantages secured by my improved vise, may be here mentioned as the most important, that,

First, it is simple in construction and arrangement, and not liable to get out of order.

Secoiid, it can be made as strong as may be desired.

Third, it requires no screw, therefore dispensing with the large and cumbersome screw-head and lever in front of all other vises new inuse, which relieves the workman of a heretofore great annoyance.

Fourth, it is adapted to any and all mechanical work. l

Fifth, it has immense power.

Sixth, its jaws must be always parallel. v

Seventh, for use by whcelwrights, it is superior to all other vises, as it allows the free use of the drawingknife in front; and, I

Eighth, its parts' are all easy of access, for taking the vise to pieces or putting it together, if it may be desired to repair any parts or portions of the same, or to substitute new ones for such parts.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the sliding bar H, ratchet-jaw shank or bar E, and pawl M, when arranged together substantially in the manner, and so as to operate as and for the purpose described.

2. The combination, with the eccentric V and sliding sleeve S, of the pawl M, arranged together and connected with the jaw-shank or bar E, substantially as and for the purpose set forth.

3. An improved vise, constructed and arranged in its several parts substantially as described, and so 'as to be operated as specified.

` SAMUEL S. BARNABY.

Witnesses:

S. E. Tnnws, W. B. Jonssroiv, Jr. 

